I watched the anime recently and it showed that he came across a giant that was put into rage due to the dragons starting to awaken. He came across it when he went to inspect a ghost warning, and then met up with the crow in the underground tomb.
A few words of wisdom. It's ok to take your time with the chapter and also take breaks, anyone who complains isn't a true appreciator of your work. I did a 4 koma for nearly a year straight and it started slow and in the middle I was going strong, but by the end I was so burnt out that I haven't...
I really wish this wasn't smut purely because I love the relationship and dynamic and being labeled as smut means far fewer people will get the change to see this.
Good work translator keep doing your best.